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Questions and Answers
What is the key physiological reactions that the body generates in response to any stressful stimuli?
What is the key physiological reactions that the body generates in response to any stressful stimuli?
What can be an example of an exogenous stressor?
What can be an example of an exogenous stressor?
What are the short term responses to stress known as?
What are the short term responses to stress known as?
Which part of the body can experience pounding headache and cold, moist skin during acute stress?
Which part of the body can experience pounding headache and cold, moist skin during acute stress?
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What is responsible for ultimately stimulating the hypothalamus during stress?
What is responsible for ultimately stimulating the hypothalamus during stress?
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Which system is commonly referred to as the HPA axis?
Which system is commonly referred to as the HPA axis?
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Study Notes
Physiological Reactions to Stress
- The body's key physiological reactions to any stressful stimuli include the activation of the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis.
Exogenous Stressors
- An example of an exogenous stressor is a physical threat, such as a loud noise or a car accident.
Short-Term Responses to Stress
- The short-term responses to stress are known as the "fight or flight" response.
Acute Stress Symptoms
- During acute stress, the head can experience a pounding headache, and the skin can become cold and moist.
Hypothalamus Stimulation
- The release of corticotropin-releasing factor (CRF) from the hypothalamus is responsible for ultimately stimulating the hypothalamus during stress.
HPA Axis
- The hypothalamic-pituitary-adrenal (HPA) axis is commonly referred to as the body's stress response system.
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Description
Explore the physiological reactions of the body to stress and stimuli, with a focus on the HPA axis - the hypothalamic-pituitary-adrenal axis. Understand how the body generates a consistent response to various stressors, whether from the external environment or exogenous sources like cold, trauma, noise, or pain.
